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Survey experts have yet to figure out what caused the most significant polling error in 40 years in Trump-Biden race

  • Written by W. Joseph Campbell, Professor of Communication Studies, American University School of Communication
Survey experts have yet to figure out what caused the most significant polling error in 40 years in Trump-Biden raceBiden supporters in Philadelphia celebrate when his win -- with a much smaller margin than predicted by polls -- was projected by news outlets on Nov. 7, 2020. Chris McGrath/Getty Images

More than six months after the astonishing polling embarrassment in the 2020 U.S. elections, survey experts examining what went wrong are uncertain about what led...

Read more: Survey experts have yet to figure out what caused the most significant polling error in 40 years...

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